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General

  • Target

    driver_booster_setup_cyri.exe

  • Size

    24.7MB

  • Sample

    221107-a1q1qaccep

  • MD5

    291dd01e49c206cb9f1f7892d1b3776e

  • SHA1

    cf46cd488fccdad30d1e381dbf3f10992b6b3430

  • SHA256

    7d2d951a80874ac6d0194f5c972e76c2d92be57627198e2a7c011811868a91dd

  • SHA512

    b4ae258d903057cff0c2fdeb265f544fe3191d86e692fbbfcfca6bac747b2d46938adbba5bde28fddbb83a7869eab8c2579512a13352f8e4c582b5bfc0e985f7

  • SSDEEP

    393216:/4I5UMYEojxBzIUWUdQ5/lXUryjYCRcSUbUMAWNArssIKXxYdKDc46YE:/4+UDvDzLNW/5l8CRiYwArcKXxYYDIYE

Malware Config

Targets

    • Target

      driver_booster_setup_cyri.exe

    • Size

      24.7MB

    • MD5

      291dd01e49c206cb9f1f7892d1b3776e

    • SHA1

      cf46cd488fccdad30d1e381dbf3f10992b6b3430

    • SHA256

      7d2d951a80874ac6d0194f5c972e76c2d92be57627198e2a7c011811868a91dd

    • SHA512

      b4ae258d903057cff0c2fdeb265f544fe3191d86e692fbbfcfca6bac747b2d46938adbba5bde28fddbb83a7869eab8c2579512a13352f8e4c582b5bfc0e985f7

    • SSDEEP

      393216:/4I5UMYEojxBzIUWUdQ5/lXUryjYCRcSUbUMAWNArssIKXxYdKDc46YE:/4+UDvDzLNW/5l8CRiYwArcKXxYYDIYE

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v6

Tasks